<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>注册</title>
    <style>
      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }

      body {
        height: 100vh;
        background: url("https://images.pexels.com/photos/290595/pexels-photo-290595.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=1") no-repeat;
        background-size: cover;
      }


      .Box {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 650px;
        height: 400px;
        display: flex;
      }

      .left {
        position: relative;
        width: 45%;
        height: 100%;
        background: url("https://img0.baidu.com/it/u=4234357226,4114415663&fm=253&fmt=auto&app=138&f=PNG?w=900&h=462") no-repeat;
        background-size: cover;
      }

      .right {
        position: relative;
        width: 55%;
        height: 100%;
        background-color: rgba(255, 255, 255, 1);
      }

      .centerBox {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 80%;
        text-align: center;
      }

      .left img {
        width: 50px;
        height: 50px;
        margin-bottom: 5px;
      }

      .left p {
        font-size: 14px;
        color: #fff;
      }

      .left h4 {
        font-size: 18px;
        color: #fff;
        margin-bottom: 10px;
      }

      .right form {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 80%;
        text-align: center;
      }

      h3 {
        margin-bottom: 20px;
        color: #5f89ca;
      }

      input {
        width: 100%;
        height: 30px;
        border: 1px solid #5f89ca;
        background-color: transparent;
        padding-left: 10px;
        font-size: 12px;
        color: #000000;
        margin-bottom: 15px;
        outline: none;
      }

      .loginBtn {
        width: 100%;
        height: 35px;
        line-height: 32px;
        text-align: center;
        font-size: 15px;
        color: #fff;
        background: #5f89ca;
        outline: none;
        border: none;
        margin-top: 10px;
      }

      .loginBtn:hover {
        cursor: pointer;
        background-color: deepskyblue;
      }

      .no {
        cursor: pointer;
        margin-top: 10px;
        text-align: center;
        font-size: 12px;
        color: #828282;
      }

      .yzmBox {
        display: flex;
        justify-content: flex-start;
      }

      .yzmBox input {
        width: 70%;
        border-top-right-radius: 0;
        border-bottom-right-radius: 0;
      }

      .yzmBox .btn {
        cursor: pointer;
        width: 29%;
        background-color: #5f89ca;
        color: #ffffff;
        height: 30px;
        outline: none;
        border: 1px solid #5f89ca;
        font-size: 12px;
        margin-left: 1%;
        border-top-left-radius: 0;
        border-bottom-left-radius: 0;
      }
    </style>
  </head>
  <body>
    <div class="Box">
      <div class="left">
        <div class="centerBox">
          <img src="https://img0.baidu.com/it/u=2804005887,994501744&fm=253&fmt=auto&app=138&f=JPEG?w=200&h=200"
            alt="">
          <h4>某某后台管理系统</h4>
          <p>This is a description</p>
        </div>
      </div>
      <div class="right">
        <form action="">
          <h3>新用户注册</h3>
          <input type="text" placeholder="请输入用户名" required>
          <input type="password" placeholder="请输入密码" required>
          <input type="password" placeholder="请再次输入密码" required>
          <input type="text" placeholder="请输入手机号" required>
          <div class="yzmBox">
            <input type="text" placeholder="请输入验证码">
            <button class="btn">发送</button>
          </div>
          <input type="submit" class="loginBtn" value="注册"></button>
          <p class="no">已有账号？<span style="text-decoration: underline;cursor: pointer;">去登陆</span></p>
        </form>
      </div>
    </div>
  </body>
</html>